If a fish or a human got injured miles away from the shore in the open ocean and the blood from the injury disperses slowly through millions of litres of water. There is an animal inside the water without the requirement of any sound or splash or movement begins to change their direction. It's Sharks, their ability isn't a myth or magic. They are gifted with the most refined sensory systems in the natural world, science says it builds through millions of years of evolution. So, how do they detect a single drop of blood in an ocean that's that vast? In this article, we are going to find the answer to this question.
